1. 卸载时,如何判断应用程序是否运行
InnoSetup 提供变量AppMutex,用来保存应用程序的Mutex名称。现在很多应用程序都是唯一实例运行。这样避免配置文件被错误修改以及其他很多衍生问题。通常都会用WindowsAPI CreateMuex来创建一个Mutex;安装包卸载时会判断AppMutex是否已经被占用。如果被占用则等待并提示用户关闭应用程序。如果应用程序正在运行,通常该exe文件和被使用的dll是不会被删除的,卸载不完全。
在Inno Setup Compile 配置中,将MyProgramsMutexName 定义为 “ityujian-A75DEC53-783F-4425-8431-24D83BD4CE5F” 该字符串需要在被打包的EXE文件中使用。
#define MyProgramsMutexName “ityujian-A75DEC53-783F-4425-8431-24D83BD4CE5F”
[Setup]
AppMutex={#MyProgramsMutexName}
2. 如何提示用户是否删除配置文件
Inno Setup提供Script Language支持,可以在[Code] 章节里使用Pascal Script编写函数 并且Inno Setup提供事件响应。在卸载时,该函数会被调用
procedure CurUninstallStepChanged(CurUninstallStep: TUninstallStep);
begin
if CurUninstallStep = usUninstall then begin
if MsgBox(‘Do you want to delete all config files and log files?’, mbConfirmation, MB_YESNO) = IDYES
then DelFiles();
end;
end;
这是Inno Setup提供的卸载事件函数, if CurUninstallStep = usUninstall 判断是否正在卸载,
如果正在卸载则需判断是否删除配置文件,我开发的应用程序使用ini文件存储配置。MsgBox(‘Do you want to delete all config files and log files?’, mbConfirmation, MB_YESNO) 用于弹出消息框,提示用户选择是否删除文件。
函数DelFiles() 为自定义函数,用来删除文件和目录。
ExpandConstant用于获取变量值,FileExists用于判断文件是否存在;DeleteFile用来删除文件;
DirExists 用于检查目录是否存在;DelTree用于删除目录和里面的文件
procedure DelFiles();
begin
if FileExists(ExpandConstant(‘{app}’) + ‘config.ini’) then DeleteFile(ExpandConstant(‘{app}’) + ‘config.ini’);
if FileExists(ExpandConstant(‘{app}’) + ‘log.txt’) then DeleteFile(ExpandConstant(‘{app}’) + ‘log.txt’);
if DirExists(ExpandConstant(‘{app}’) + ‘Users’) then DelTree(ExpandConstant(‘{app}’) + ‘Users’, true, true, true);
end;
Inno Setup 编译配置文件如下,供参考:
; Script generated by the Inno Setup Script Wizard.
; SEE THE DOCUMENTATION FOR DETAILS ON CREATING INNO SETUP SCRIPT FILES!
#define MyAppName “ityujian”
;应用程序名
#define MyAppVersion “1.0”
;版本号
#define MyAppPublisher “Jianyu Studio”
;发布者名称
#define MyAppURL “http://www.cnblogs.com/ityujian/”
;公司的网站
#define MyAppExeName “ityujian.exe”
;exe文件名
#define MyProgramsMutexName “ityujian-A75DEC53-783F-4425-8431-24D83BD4CE5F”
;应用程序中使用的Mutex,卸载时用来判断应用程序是否正在执行
[Setup]
; NOTE: The value of AppId uniquely identifies this application.
; Do not use the same AppId value in installers for other applications.
; (To generate a new GUID, click Tools | Generate GUID inside the IDE.)
AppId={{ECCF74CD-48BA-4000-988B-18E965893BD6}
AppName={#MyAppName}
AppVersion={#MyAppVersion}
;AppVerName={#MyAppName} {#MyAppVersion}
AppPublisher={#MyAppPublisher}
AppPublisherURL={#MyAppURL}
AppSupportURL={#MyAppURL}
AppUpdatesURL={#MyAppURL}
DefaultDirName={pf}{#MyAppName}
DefaultGroupName={#MyAppName}
AllowNoIcons=yes
OutputBaseFilename=setup
SetupIconFile=.ityujian.ico
;SetupIconFile 是打包之后exe的图标文件
Compression=lzma
SolidCompression=yes
AppMutex={#MyProgramsMutexName}
;AppMutex是需要打包的应用程序使用的Mutex,卸载之前会先判断该AppMutex是否已经被占用,如果被占用则提示应用程序正在运行,请关闭
[Languages]
Name: “english”; MessagesFile: “compiler:Default.isl”
[Tasks]
Name: “desktopicon”; Description: “{cm:CreateDesktopIcon}”; GroupDescription: “{cm:AdditionalIcons}”; Flags: unchecked
Name: “quicklaunchicon”; Description: “{cm:CreateQuickLaunchIcon}”; GroupDescription: “{cm:AdditionalIcons}”; Flags: unchecked; OnlyBelowVersion: 0,6.1
[Files]
Source: “GdiPlus.dll”; DestDir: “{app}”; Flags: ignoreversion
Source: “ityujian.exe”; DestDir: “{app}”; Flags: ignoreversion
;Source 描述需要打包的EXE文件位置,DestDir描述安装时该EXE文件的相对位置
Source: “ityujian.pdb”; DestDir: “{app}”; Flags: ignoreversion
Source: “Users*”; DestDir: “{app}Users”; Flags: ignoreversion recursesubdirs createallsubdirs uninsneveruninstall
;上句用于将Users目录打进安装包;uninsneveruninstall说明卸载时,不删除该文件夹
Source: “Doc*”; DestDir: “{app}Doc”; Flags: ignoreversion recursesubdirs createallsubdirs
;用户将Doc目录下的用户手册打进安装包
; NOTE: Don’t use “Flags: ignoreversion” on any shared system files
[Icons]
Name: “{group}{#MyAppName}”; Filename: “{app}{#MyAppExeName}”
Name: “{group}{cm:ProgramOnTheWeb,{#MyAppName}}”; Filename: “{#MyAppURL}”
Name: “{group}{cm:UninstallProgram,{#MyAppName}}”; Filename: “{uninstallexe}”
Name: “{commondesktop}{#MyAppName}”; Filename: “{app}{#MyAppExeName}”; Tasks: desktopicon
Name: “{userappdata}MicrosoftInternet ExplorerQuick Launch{#MyAppName}”; Filename: “{app}{#MyAppExeName}”; Tasks: quicklaunchicon
[UninstallDelete]
Type: dirifempty; Name: “{app}”
;Type有多种;Type: dirifempty表示如果安装本应用程序的目录不为空,则不删除安装目录
[Code]
procedure DelFiles();
begin
if FileExists(ExpandConstant(‘{app}’) + ‘config.ini’) then DeleteFile(ExpandConstant(‘{app}’) + ‘config.ini’);
if FileExists(ExpandConstant(‘{app}’) + ‘log.txt’) then DeleteFile(ExpandConstant(‘{app}’) + ‘log.txt’);
if DirExists(ExpandConstant(‘{app}’) + ‘Users’) then DelTree(ExpandConstant(‘{app}’) + ‘Users’, true, true, true);
end;
procedure CurUninstallStepChanged(CurUninstallStep: TUninstallStep);
begin
if CurUninstallStep = usUninstall then begin
if MsgBox(‘Do you want to delete all config files and log files?’, mbConfirmation, MB_YESNO) = IDYES
then DelFiles();
end;
end;
转自:http://www.chawenti.com/articles/15721.html